Answer:
x = 9.
Step-by-step explanation:
42 - 15 = 27
27 ÷ 3 = 9
<span>A) y=-3x+x
</span>
<span>B) y=2x-4
Are you sure about equation A -3x + x?
</span>
<span>A) 2x +y=0
</span>
<span>B) -2X + y= -4
</span>
<span>318.87 cm of metal to be exact.</span>
